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  • Contact information
  • Current positions
  • Working Experiences
  • Education Experiences
  • Publications
  • Projects
  • Some notes
  • …  
    • Contact information
    • Current positions
    • Working Experiences
    • Education Experiences
    • Publications
    • Projects
    • Some notes


    broken image
    broken image
    broken image
    • Contact information
    • Current positions
    • Working Experiences
    • Education Experiences
    • Publications
    • Projects
    • Some notes
    • …  
      • Contact information
      • Current positions
      • Working Experiences
      • Education Experiences
      • Publications
      • Projects
      • Some notes


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      • Dr. Kai Yuan, Ph.D.

        Seeking smart solutions to transport problems!

        Contact information

        Hefei University of Technology 

        Hefei, China

        Email: kyuan@hfut.edu.cn

      • Dr. Kai Yuan holds an associate professorship at the department of Transport and Logistic Engineering, Hefei University of Technology, Hefei, China. He was officially affiliated with Delft University of Technology as a researcher, Delft, The Netherlands. His general activities relate to traffic and transportation system modelling and optimisation.

        Research key words: Traffic flow theory, Traffic flow modelling, Capacity drop, Macroscopic Fundamental Diagram (MFD), Traffic control, Multi-class traffic dynamics, Multi-modal transportation system

      • Working Experiences

        April. 2020-Present. Associate professor

        Hefei University of Technology, Hefei, China

         

        September. 2020-September.2024 Guest Researcher

        Delft University of Technology, Delft, The Netherlands

         

        April.2018-April.2020 Postdoc researcher, working with Prof. Hans van Lint & Dr. Victor Knoop

        Department of Transport & Planning
        Delft University of Technology, the Netherlands

         

        January.2017-March.2018 Postdoc researcher, working with Prof. Hong Lo

        GREAT Smart Cities Institute
        Hong Kong University of Science and Technology, Hong Kong

         

        November.2015-February.2016 Visiting Ph.D. candidate, advised by Dr. Jorge Laval

        Traffic Lab in School of Civil & Environmental Engineering

        Georgia Institute of Technology, U.S.A

      • Education Experiences

        September. 2012-December. 2016

        Ph.D., advised by Prof. Serge Hoogendoorn & Dr. Victor Knoop

        Delft University of Technology, Delft, The Netherlands

        Dissertation: Capacity drop on freeways: traffic dynamics, theory and modelling

         

        September.2010-July.2012

        M.Eng. in Traffic and Transportation Planning and Management, advised by Prof. Wei Guan (关伟 教授)

        School of Traffic and Transportation

        Beijing Jiaotong University, Beijing, China

         

        September.2006- July.2010

        B.Eng. in Traffic and Transportation

        School of Traffic and Transportation, Beijing Jiaotong University, Beijing, China

      • Publications

        Journal Articles 

        1. Yin, Z., Yuan, K.* and Zheng S. (2024) Optimization of traffic flow by allowing private cars to merge into the bus lane at specific locations, Journal of Advanced Transportation
        2. Yuan, K.* and Knoop, V.L. (2023) Hysteresis and the Unobserved Congestion Branch in the Macroscopic Fundamental Diagram: Theoretical Considerations and Modeling, Journal of Advanced Transportation, vol. 2023, Article ID 8797109, 15 pages.
        3. Yuan, K., Cui Dandan and Long, Jiancheng (2023) Bus frequency optimization in a large-scale multi-modal transportation system: Integrating 3D-MFD and dynamic traffic assignment, Digital Transportation and Safety, 2:1−13 doi: 10.48130/DTS-2023-0020.
        4. Guo, J.Q., Long, J.C., Xu, X.X., Yu, M. and Yuan, K. (2022) The vehicle routing problem of intercity ride-sharing between two cities. Transportation Research Part B: Methodological, 158:113-139.
        5. Yuan, K.*, and Lo K.Hong (2021) Multi-class traffic flow dynamics: an endogenous model. Transportation Science, 55(2):456-474.
        6. Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2019). Multi-class traffic flow on a partially space-shared road. Transportmetrica-B, 7(1):1505-1520.
        7. Yuan, K.*, Laval, J., Knoop, V.L., Jiang, R., and Hoogendoorn, S.P. (2019). A Geometric Brownian motion car-following model: towards a better understanding of capacity drop. Transportmetrica-B, 7(1):915-927.
        8. Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2017) A microscopic investigation into the capacity drop: impacts of longitudinal behavior on the queue discharge rate. Transportation Science, 51(3):852-862.
        9. Yuan, K.*, Knoop, V.L., Leclercq, L., and Hoogendoorn, S.P. (2017) Capacity drop: a comparison between stop-and-go wave and standing queue at lane-drop bottleneck. Transportmetrica-B. 5(2):145-158.
        10. Yuan, K.*, Knoop, V. L., and Hoogendoorn, S.P. (2016). A kinematic wave model in Lagrangian coordinates incorporating capacity drop: application to homogeneous road stretches and discontinuities. Physica A: Statistical Mechanics & Its Applications, 465:472-485.
        11. Yuan, K.*, Knoop, V.L., and Hoogendoorn, S.P. (2015). Capacity drop: relation between the speed in congestion and the queue discharge rate. Transportation Research Record: Journal of the Transportation Research Board, 2491(2491): 72-80. (Poster here).
        12. 袁凯,关伟*. 城市快速路交通流车头时距分布特性分析 [J]. 交通运输系统工程与信息, 2011, 11(6):68-73. (in Chinese. English translation: Time-headway Distribution Features on Urban Freeway).

           * indicates the corresponding author.

         

        Peer reviewed book contributions

        1. Yuan, K.*, Knoop, V.L., Van Lint, J.W.C. (2020) Departure rates optimization and perimeter control: comparison and cooperation in a multi-region urban network. Proceedings of Traffic and Granular Flow 2019, pp: 597-603. Editors: Iker Zuriguel, Angel Garcimartin, Raul Cruz.

        Peer Reviewed Conference Contributions

        1. Yuan, K. (2023) Nature of urban traffic delays: understanding and modeling urban congestion dynamics and its determinants Modeling. TFTC summer meeting 2023, Amsterdam, the Netherlands. 
        2. Yuan, K., Knoop, V.L. and Van Lint, J.W.C. (2020) Matching the Macroscopic Fundamental Diagram with Demand Profiles: From a Perspective of Departure Time Choice Behavior. The 99th Annual Meeting of the Transportation Research Board. (See poster here)
        3. Yuan, K. and Hong K.L. (2017) Multi-lane multi-class traffic flow dynamics. The 22nd international conference of Hong Kong society for transportation studies, Hong Kong.
        4. Wang, S.L., Yuan, K. and Hong, K.L. (2017) Modeling freeway travel time distribution considering moving bottlenecks: an analytical approach. The 22nd international conference of Hong Kong society for transportation studies, Hong Kong.
        5. Yuan, K., Laval, J., Knoop, V.L., Jiang, R., and Hoogendoorn, S.P. (2017) A Geometric Brownian motion car-following model: towards a better understanding of capacity drop. The 96th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
        6. Yuan, K., Knoop, V.L., and Hoogendoorn, S.P. (2016) A Microscopic Investigation into the Capacity Drop: Impacts of Bounded Accelerations and Reaction time. The 95th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
        7. Yuan, K., Knoop, V.L., and Hoogendoorn, S.P. (2016) Optimal dynamic green time for distributed signal control, 2016 IEEE 19th International Conference on Intelligent Transportation Systems (ITSC), Rio de Janeiro, 2016, pp. 447-451. doi: 10.1109/ITSC.2016.7795593.
        8. Yuan, K., Knoop, V.L., Schreiter T. and Hoogendoorn, S.P. (2015) A Hybrid Kinematic Wave Model Incorporating Capacity Drops. 2015 IEEE 18th International Conference on Intelligent Transportation Systems - (ITSC 2015), Spain.
        9. Yuan, K., Knoop, V.L. and Hoogendoorn, S.P. (2015) Capacity Drop: A Relation Between The Speed In Congestion And The Queue Discharge Rate. The 94th Annual Meeting of the Transportation Research Board, Washington D.C., U.S.A.
        10. Yuan, K., Knoop, V.L., Leclercq, L., and Hoogendoorn, S.P. (2015) Capacity Drop: A Comparison between Stop-And-Go Wave and Standing Queue at Lane-Drop Bottleneck. The Traffic Flow Theory Summer Meeting, Portland, U.S.A.
        11. Yuan, K., Knoop, V.L. and Hoogendoorn, S.P. (2014) Optimal Dynamic Green Time For Distributed Signal Control. The Symposium of the European Association for Research in Transportation, Leeds, United Kingdom.
        12. Lin, L., Yuan, K. and Ren, S. (2014) Analysis of urban freeway traffic flow characteristics based on frequent pattern tree. 2014 IEEE 17th International Conference on Intelligent Transportation Systems - (ITSC 2015), China.

      • Projects

        On-going and past peojects

        Traffic congestion mechanism on lognitudinal slopes and management s...
        2023年12月28日 · On-going projects
      • SOME NOTES

        Please don't hesitate to contact me if you have any comments and suggestions on my notes.

        Plot speed/density contour:
        imagesc(X,Y,A)
         
        Reverse y direction:
        axis xy : ydir increases from bottom to top
        axis ij : otherwise
         
        creates an animated line:h = animatedline;
         
        Inkscape: Edit->Resize Page to Selection

      Let's keep in touch!

        Dr. Kai Yuan's HOMEPAGE
        Website
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